The LG 5,000 BTU Window Air Conditioner, Model # LW5016 does not come with expandable brackets...^Ivan

I am in this situation currently with two units. I keep hearing and reading about a drain cap but there is nothing back there other than a small notch (dip in the medal on the bottom case). I'm now running into issues with water coming up to the front on both. Were you able to figure out a fix and or the cause? All I can think is to tilt it even more, which doesn't seem possible in my windows.

Have you had both of your LG 5,000 BTU Window Air Conditioner, Model # LW5016 professionally cleaned since installing them? If the air conditioners are spraying or spitting water inside, there are several causes for that happening. The first reason may be due to a blockage in the drainage system. When there is a blockage in the drainage system, water can't get outside or into the plumbing, so it collects in the pan, which eventually starts to overflow. The force generated by the circulation fan can throw some of this water into the air and force it out through the front grille, but usually, the water just drips onto the floor. The remedy for this problem is to suck dust and dirt from the drainage hose using a wet/dry vacuum. Look for obstructions in the bottom of the drain pan itself, and remove them. The second reason may be due to an improper slope. Wall and window air conditioners are installed with a slight slope to the outside so that water will flow that way. If the unit slopes toward the inside because of improper installation or shifting, water can collect in the front of the drain pan and spillover. Check the slope with a level, and correct it if necessary. The third reason may be due to coil-freeze over. If the evaporative coils ice up, when the ice melts, water may drip from the front of the unit, and again, the force of the fan may turn the drip into a spray. Coils will ice because of a dirty air filter. This reduces the air circulation inside the cooling chamber. You should clean or change the filter at least once a month. The other cause for coil freeze over which is unlikely may be due to a low refrigerant level. This is unlikely because the refrigerant is enclosed in a closed system and the only way it would be low would be due to a leak in the system. Refrigerant has a very unmistakeable distinctive smell which you would have noticed if it was low due to a leak. This isn't something you can fix yourself. By law, a licensed air conditioner service technician must do it...^Ivan

When was the last time that you had the evaporator coils and condenser coils in the LG 5,000 BTU Window Air Conditioner, Model # LW5016 cleaned? You need to have them cleaned if you have never had them cleaned. Because of the way they operate, evaporator and condenser coils both need to be kept clean to perform as intended and reach optimal energy efficiency. A dirty evaporator coil can experience a number of problems, including, impaired heat absorption and cooling capacity. A dirty condenser coil will have a reduced ability to transfer heat to the outside air and this can lead to a less effective cooling system. A person that is using an air conditioner that has a dirty condenser coil may find that the unit no longer provides adequate cooling...^IFV

The LG 5,000 BTU Window Air Conditioner, Model # LW5016 is not a Portable Air Conditioner, it is a Window Air Conditioner and it does not use a drain hose...^IFV

The LG 5,000 BTU Window Air Conditioner, Model # LW5016 has a Dry Air Flow (CFM) of 134...^IFV

Wipe the front grille and inlet grille with a cloth dampened in a mild detergent solution. Wash the cabinet with mild soap or detergent and lukewarm water, then polish using liquid appliance wax. The condenser coils (outside of unit) should be checked periodically and cleaned if clogged with soot or dirt from outside air.

We appreciate your interest in this air conditioner. There is never cause to add water to this air conditioner. It should also not require checking the amount of water in the machine, as the water that has been extracted from the humidity in the air will be re-used by the machine to enhance efficiency of the cooling process.